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Showing 1 to 16 of 16 for “"Batholiths."”.
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Provenance and tectonic significance of the Lower Paleozoic Douglas Conglomerate, northern Churchill Mountains, Antarctica
… within the trend of Cambro-Ordovician granitic batholiths it does not record the unroofing of these plutons. Therefore, it is probably older than the intrusives and was deposited in response to an earlier tectonic event.
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White mica: spectrometer design, district-scale mapping, and integration of imaging spectrometer and lidar data
… white mica grain-size with proximity to buried batholiths and associated magmatic-hydrothermal activity. We determined that fine-grained, high-Al content white micas, which we interpreted to be sericite formed as the result of magmatic-hydrothermal activity, were spatially associated with …
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Integrated seismic interpretation of the Larder Lake area, Southern Abitibi greenstone belt, Ontario, Canada
… rocks intruded by granitic plutons and batholiths, which makes the area a hardrock environment. In the Larder Lake area, these stratigraphic units are truncated by two major breaks, the Lincoln Nipissing shear zone (LNSZ) and Cadillac-Larder Lake deformation zone (CLLDZ) which trend …
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Geophysical investigations in the English Lake District
… plot; three corresponding to granite batholiths in SW England, northern England and the Eastern Highlands of Scotland, and a fourth to the basement rocks of central England and Wales. A single linear correlation between q<sub>0</sub> and A<sub>0</sub> is no longer tenable, and an …
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N-S shortening during orogenesis in the Mt Isa Inlier: the preservation of W-E structures and their tectonic and metamorphic significance
… supports the emplacement of the Williams/Naraku Batholiths after O1 around the onset of O2. Higher-pressure garnet cores, modeled in MnNCKFMASH P-T pseudosections preserved early W-E FIAs and formed during O1. This was followed by decompression and then low pressure – high temperature (LP/HT) …
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Structural Analysis of the Northwest Wind Mountain Quadrangle, New Mexico: Proterozoic Shearing to Cenozoic Brittle Faulting in the Burro Mountains
… caused by stress regimes formed by intruding batholiths changing orientation based on their geometry. The final folding event was caused by oblique faulting in the region. Associated fault drag folds have axial planar orientations similar to the faults that caused them. The ductile deformation …
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The India-Asia pile up
… if the granitoids of the Ladakh and Karakorum batholiths of NW India were emplaced episodically or continuously during the Himalayan orogeny. The SHRIMP results indicate that magmatism was episodic. However, we also found that zircons with high-uranium concentrations produce older apparent ages …
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The India-Asia pile up
… if the granitoids of the Ladakh and Karakorum batholiths of NW India were emplaced episodically or continuously during the Himalayan orogeny. The SHRIMP results indicate that magmatism was episodic. However, we also found that zircons with high-uranium concentrations produce older apparent ages …
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MULTISCALE GEOCHEMICAL STUDY OF THE CORNO ALTO COMPLEX (ADAMELLO BATHOLITH)
Granitoid batholiths are important end products of the Earth’s long-term compositional differentiation, representing either the addition of juvenile material to the crust or the reworking of older crustal components. The nature and composition of crustal granitoids significantly changed at the …
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Interpreting Southern California Arc Geochemistry by Multivariate and Spatial Methods
<p>Exploratory data analysis methods of multivariate statistical techniques and spatial visualization are emerging trends in understanding big datasets. In this project, these techniques are applied to a large igneous geochemical dataset from the southern California segment of the Mesozoic …
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Compositional Diversity in Arcs: A Record of Magmatic Processes in the Peru Coastal Batholith, Ica
<p>Peruvian granitic plutons display evidence for crustal recycling and magma mixing. Evidence of physical and chemical processes operating during the formation of the Ica-Pisco complexes involves magma mixing and mingling as result of felsic and mafic interactions. Evidence of crustal recycling …